4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 8" Installation – Installs directly on

Installation – Installs directly on round & oval spiral duct - no frames

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

+ Product Details Size – 12" x 36" or 36" x 12" is the size for the duct opening measurement only

ensuring a secure connection

4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 8" Installation – Installs directly on+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value Insulation A thick blanket of fiberglass insulation provides you with an R Value of 6. 0 Energy Efficient Air tight inner core decreases the pressure loss and provides a more hygienic environment high energy efficient No fiberglass erosion into air stream Design Designed to withstand bends and sharp turns without kinking. Tough reinforced